A dry cell provides power to electronics, and a capacitor stores charge in it,they both hold power in it.But how they differ in longitivity of power supply.When a capacitor's end is connected they totally discharge their power but not the dry cell.Please help me answer this,you'll be appreciated.
Yes,you got almost all the answers right from other friends.Radio waves are generated by electromagnetic oscillations,& have their wavelengths in the electromagnetic spectrum longer than infrared light.Electric current(mainly AC supply) has the sine wave oscillations,as the radio waves but it...